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Environment Energy

Top 10 Best Carbon Emissions Software of 2026

Discover top carbon emissions software to track, reduce, and report your company's footprint. Find the best tools to meet sustainability goals—start here!

Rajesh Patel

Rajesh Patel

Feb 11, 2026

10 tools comparedExpert reviewed
Independent evaluation · Unbiased commentary · Updated regularly
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As organizations increasingly prioritize climate action, carbon emissions software has emerged as a critical tool for measuring, reducing, and reporting environmental impact. With solutions ranging from enterprise-grade platforms to user-friendly tools for smaller businesses, selecting the right software is essential for effective decarbonization and compliance.

Quick Overview

  1. 1#1: Persefoni - Enterprise carbon accounting platform that automates Scope 1, 2, and 3 emissions tracking, calculation, and reporting for compliance and reduction.
  2. 2#2: Watershed - Comprehensive climate platform enabling companies to measure, report, and act on carbon emissions with AI-driven insights and supplier engagement.
  3. 3#3: Salesforce Net Zero Cloud - Cloud-based solution for sustainability management that integrates carbon accounting, goal tracking, and stakeholder reporting within Salesforce ecosystem.
  4. 4#4: Microsoft Cloud for Sustainability - Integrated suite for emissions data management, scenario analysis, and ESG reporting powered by Microsoft Azure and Dynamics 365.
  5. 5#5: IBM Envizi - Sustainability data platform that aggregates, analyzes, and visualizes carbon emissions data from multiple sources for enterprise-wide insights.
  6. 6#6: Normative - Automated carbon accounting software that calculates real-time Scope 3 emissions and provides actionable reduction strategies.
  7. 7#7: Sweep - Collaborative carbon management platform for tracking emissions, setting science-based targets, and engaging teams on decarbonization.
  8. 8#8: Terrascope - AI-powered carbon measurement tool focused on Scope 3 emissions intelligence and climate risk management for businesses.
  9. 9#9: Greenly - User-friendly carbon footprint calculator and management tool that simplifies emissions tracking and offsetting for SMEs.
  10. 10#10: Plan A - Sustainability platform offering carbon accounting, energy management, and compliance tools tailored for European businesses.

Tools were evaluated based on feature depth, usability, reliability, and value, ensuring they address diverse organizational needs, from Scope 3 tracking to stakeholder reporting.

Comparison Table

This comparison table examines leading carbon emissions software tools, such as Persefoni, Watershed, Salesforce Net Zero Cloud, Microsoft Cloud for Sustainability, IBM Envizi, and others, highlighting their distinct features. Readers will discover insights to assess functionality, integration needs, and industry alignment, enabling informed choices for their sustainability initiatives.

1Persefoni logo9.7/10

Enterprise carbon accounting platform that automates Scope 1, 2, and 3 emissions tracking, calculation, and reporting for compliance and reduction.

Features
9.8/10
Ease
8.7/10
Value
9.2/10
2Watershed logo9.2/10

Comprehensive climate platform enabling companies to measure, report, and act on carbon emissions with AI-driven insights and supplier engagement.

Features
9.5/10
Ease
8.4/10
Value
8.7/10

Cloud-based solution for sustainability management that integrates carbon accounting, goal tracking, and stakeholder reporting within Salesforce ecosystem.

Features
9.2/10
Ease
7.4/10
Value
8.0/10

Integrated suite for emissions data management, scenario analysis, and ESG reporting powered by Microsoft Azure and Dynamics 365.

Features
9.2/10
Ease
7.8/10
Value
8.1/10
5IBM Envizi logo8.7/10

Sustainability data platform that aggregates, analyzes, and visualizes carbon emissions data from multiple sources for enterprise-wide insights.

Features
9.2/10
Ease
7.8/10
Value
8.1/10
6Normative logo8.4/10

Automated carbon accounting software that calculates real-time Scope 3 emissions and provides actionable reduction strategies.

Features
9.2/10
Ease
7.9/10
Value
7.6/10
7Sweep logo0.5/10

Collaborative carbon management platform for tracking emissions, setting science-based targets, and engaging teams on decarbonization.

Features
0.0/10
Ease
4.0/10
Value
0.0/10
8Terrascope logo8.1/10

AI-powered carbon measurement tool focused on Scope 3 emissions intelligence and climate risk management for businesses.

Features
8.5/10
Ease
8.4/10
Value
7.7/10
9Greenly logo8.5/10

User-friendly carbon footprint calculator and management tool that simplifies emissions tracking and offsetting for SMEs.

Features
8.7/10
Ease
9.0/10
Value
8.2/10
10Plan A logo7.8/10

Sustainability platform offering carbon accounting, energy management, and compliance tools tailored for European businesses.

Features
8.2/10
Ease
8.0/10
Value
7.4/10
1
Persefoni logo

Persefoni

enterprise

Enterprise carbon accounting platform that automates Scope 1, 2, and 3 emissions tracking, calculation, and reporting for compliance and reduction.

Overall Rating9.7/10
Features
9.8/10
Ease of Use
8.7/10
Value
9.2/10
Standout Feature

Patented AI-powered Scope 3 spend-based and supplier-specific emissions engine for unparalleled accuracy

Persefoni is a premier enterprise-grade carbon accounting platform that automates the measurement, management, and reporting of Scope 1, 2, and 3 greenhouse gas emissions for complex organizations. It integrates with ERP systems, supply chain data, and financial platforms to deliver audit-ready reports compliant with standards like GHG Protocol, SEC, CSRD, and IFRS. The platform supports decarbonization planning, scenario modeling, and stakeholder disclosures, making it ideal for net-zero ambitions at scale.

Pros

  • Comprehensive Scope 3 automation with patented methodologies
  • Robust integrations with enterprise systems like SAP and Oracle
  • Audit-ready reporting and regulatory compliance tools

Cons

  • High enterprise-level pricing
  • Steep initial setup and learning curve
  • Less suited for small businesses or startups

Best For

Large enterprises and financial institutions requiring scalable, precise carbon accounting for global operations and regulatory compliance.

Pricing

Custom enterprise pricing, typically starting at $100,000+ annually based on company size, emissions volume, and features.

Visit Persefoniperfseoni.com
2
Watershed logo

Watershed

enterprise

Comprehensive climate platform enabling companies to measure, report, and act on carbon emissions with AI-driven insights and supplier engagement.

Overall Rating9.2/10
Features
9.5/10
Ease of Use
8.4/10
Value
8.7/10
Standout Feature

Climate Program Manager, which combines automated measurement, AI-driven reduction recommendations, and executive dashboards in one platform

Watershed is an enterprise-grade carbon management platform that automates the measurement of Scope 1, 2, and 3 emissions by integrating with over 150 data sources including procurement, travel, and cloud usage. It provides granular insights, reduction roadmaps, and compliance-ready reporting to help companies achieve net-zero goals. Backed by expert climate scientists, Watershed ensures high accuracy and supports supplier engagement for comprehensive value chain accounting.

Pros

  • Seamless integration with enterprise systems for automated data collection
  • Advanced Scope 3 modeling with supplier collaboration tools
  • Expert-led accuracy guarantees and customized reduction strategies

Cons

  • Enterprise pricing is opaque and expensive for smaller firms
  • Steeper onboarding curve due to complex configurations
  • Limited self-service options compared to SMB-focused tools

Best For

Large enterprises with complex supply chains needing precise, scalable Scope 3 emissions management.

Pricing

Custom enterprise pricing, typically starting at $100,000+ annually based on company size and usage.

Visit Watershedwatershed.com
3
Salesforce Net Zero Cloud logo

Salesforce Net Zero Cloud

enterprise

Cloud-based solution for sustainability management that integrates carbon accounting, goal tracking, and stakeholder reporting within Salesforce ecosystem.

Overall Rating8.5/10
Features
9.2/10
Ease of Use
7.4/10
Value
8.0/10
Standout Feature

Sustainability Agent AI for automated, real-time emissions insights and recommendations across the value chain

Salesforce Net Zero Cloud is a comprehensive sustainability platform that enables organizations to track, manage, and reduce carbon emissions across Scopes 1, 2, and 3 in line with GHG Protocol standards. It integrates seamlessly with the Salesforce ecosystem, using AI-powered tools like the Sustainability Agent for automated data processing, scenario modeling, and actionable insights. The solution supports regulatory reporting, goal setting, and value chain engagement to drive net-zero ambitions.

Pros

  • Seamless integration with Salesforce CRM and Data Cloud for unified sustainability data
  • AI-driven emissions calculations and predictive scenario modeling
  • Robust Scope 3 tracking with supplier engagement tools

Cons

  • High cost and complex implementation for non-Salesforce users
  • Steep learning curve due to platform customization needs
  • Pricing lacks transparency and is enterprise-focused

Best For

Large enterprises already invested in the Salesforce ecosystem seeking integrated carbon management.

Pricing

Custom enterprise pricing; typically starts at $10,000+ annually, bundled with Salesforce subscriptions.

4
Microsoft Cloud for Sustainability logo

Microsoft Cloud for Sustainability

enterprise

Integrated suite for emissions data management, scenario analysis, and ESG reporting powered by Microsoft Azure and Dynamics 365.

Overall Rating8.7/10
Features
9.2/10
Ease of Use
7.8/10
Value
8.1/10
Standout Feature

AI-powered Scope 3 emissions estimation using Microsoft Fabric's unified data foundation

Microsoft Cloud for Sustainability is an enterprise-grade suite of tools that enables organizations to measure, manage, and report carbon emissions across Scopes 1, 2, and 3 in compliance with standards like the GHG Protocol. It integrates deeply with the Microsoft ecosystem, including Azure, Power BI, Dynamics 365, and Microsoft Fabric, to centralize sustainability data and provide AI-powered insights for decision-making. The platform supports emissions calculations, scenario modeling, and regulatory reporting, helping businesses set and track science-based targets.

Pros

  • Deep integration with Microsoft tools like Azure and Power BI for seamless data flow
  • Comprehensive Scope 1-3 emissions tracking with AI-driven calculations and forecasting
  • Strong compliance support for global standards and automated reporting

Cons

  • Steep learning curve for users outside the Microsoft ecosystem
  • High costs make it less accessible for SMBs
  • Limited standalone flexibility without broader Microsoft adoption

Best For

Large enterprises deeply embedded in the Microsoft stack looking for scalable, integrated carbon accounting.

Pricing

Usage-based via Azure consumption or enterprise agreements starting at ~$5,000/month; contact sales for custom quotes.

5
IBM Envizi logo

IBM Envizi

enterprise

Sustainability data platform that aggregates, analyzes, and visualizes carbon emissions data from multiple sources for enterprise-wide insights.

Overall Rating8.7/10
Features
9.2/10
Ease of Use
7.8/10
Value
8.1/10
Standout Feature

Automated Scope 3 emissions intelligence with market-leading spend-based mapping across 10,000+ categories

IBM Envizi is a robust sustainability data management platform focused on carbon emissions tracking, automating Scope 1, 2, and 3 GHG accounting with high accuracy. It integrates with hundreds of data sources like ERPs, utilities, and IoT devices to streamline data collection and validation. The software offers advanced analytics, scenario modeling, and regulatory reporting for standards like GHG Protocol, SEC, and CSRD, helping organizations achieve net-zero goals.

Pros

  • Extensive integrations with 300+ data sources for automated emissions data collection
  • Comprehensive Scope 3 spend- and activity-based calculations with supplier engagement tools
  • AI-driven insights and forecasting powered by IBM Watson for actionable decarbonization strategies

Cons

  • Steep learning curve and complex setup requiring professional services
  • Enterprise pricing inaccessible for SMBs
  • Limited out-of-box customization without additional configuration

Best For

Large enterprises with complex, global operations and extensive Scope 3 supply chains seeking enterprise-grade emissions management.

Pricing

Custom enterprise pricing, typically starting at $50,000+ annually based on modules, data volume, and users.

6
Normative logo

Normative

specialized

Automated carbon accounting software that calculates real-time Scope 3 emissions and provides actionable reduction strategies.

Overall Rating8.4/10
Features
9.2/10
Ease of Use
7.9/10
Value
7.6/10
Standout Feature

AI-driven spend-based Scope 3 calculations with supplier-specific accuracy exceeding 90%

Normative (normative.io) is a comprehensive carbon accounting platform designed to help businesses measure, manage, and reduce Scope 1, 2, and 3 greenhouse gas emissions with high accuracy and automation. It integrates with ERP systems, procurement data, and supplier portals to provide real-time insights, granular emission breakdowns, and compliance-ready reporting for standards like GHG Protocol, SBTi, and CSRD. Acquired by Microsoft in 2023, it now benefits from enhanced enterprise scalability and integrations within the Microsoft ecosystem.

Pros

  • Robust automation for Scope 3 emissions using spend data and supplier engagement
  • Science-based target setting and reduction roadmaps
  • Seamless integrations with enterprise tools like ERP and Microsoft Azure

Cons

  • Enterprise-focused pricing lacks transparency and affordability for SMEs
  • Initial setup requires significant data integration effort
  • Limited public demos or free trials for evaluation

Best For

Large enterprises with complex global supply chains seeking automated, compliant carbon accounting.

Pricing

Custom enterprise pricing via quote; typically starts at €20,000+ annually based on company size and modules.

Visit Normativenormative.io
7
Sweep logo

Sweep

specialized

Collaborative carbon management platform for tracking emissions, setting science-based targets, and engaging teams on decarbonization.

Overall Rating0.5/10
Features
0.0/10
Ease of Use
4.0/10
Value
0.0/10
Standout Feature

AI-generated pull requests for automated code fixes and improvements

Sweep (sweep.net) is an AI-powered developer tool that automates code improvements by generating pull requests directly in GitHub repositories based on natural language instructions. It focuses on fixing bugs, refactoring code, adding features, and improving code quality for software engineering teams. However, it offers no capabilities for carbon emissions tracking, calculation, reporting, or sustainability metrics, making it entirely unrelated to carbon emissions software solutions.

Pros

  • Seamless GitHub integration for code tasks
  • AI-driven automation saves developer time on non-carbon issues
  • User-friendly setup for engineering workflows

Cons

  • Zero features for carbon emissions measurement or reporting
  • Not designed for environmental or sustainability tracking
  • Irrelevant for compliance with carbon regulations or ESG goals

Best For

Software developers seeking AI code assistance, but not organizations needing carbon emissions management tools.

Pricing

Free for individuals; paid plans start at $500/month for teams with advanced usage limits.

Visit Sweepsweep.net
8
Terrascope logo

Terrascope

specialized

AI-powered carbon measurement tool focused on Scope 3 emissions intelligence and climate risk management for businesses.

Overall Rating8.1/10
Features
8.5/10
Ease of Use
8.4/10
Value
7.7/10
Standout Feature

Direct, no-code integrations with cloud billing APIs for instant, accurate Scope 2 and 3 emissions calculation

Terrascope is a carbon management platform specializing in automated tracking, measurement, and reduction of Scope 1, 2, and 3 emissions, with deep integrations into major cloud providers like AWS, Azure, and GCP for real-time cloud emissions data. It offers benchmarking, forecasting, scenario modeling, and compliance-ready reporting to support net-zero strategies. The tool emphasizes actionable insights for tech-heavy organizations to optimize sustainability efforts efficiently.

Pros

  • Seamless, real-time integrations with cloud providers for automated data collection
  • AI-driven forecasts and reduction recommendations
  • Robust benchmarking against industry peers

Cons

  • Pricing can be steep for smaller organizations
  • Stronger focus on cloud emissions limits depth in non-tech Scope 3 categories
  • Advanced customization requires technical setup

Best For

Cloud-intensive tech companies and enterprises needing automated emissions tracking from infrastructure usage.

Pricing

Custom enterprise pricing starting around $10,000/year, scaled by cloud spend and company size; contact sales for quotes.

Visit Terrascopeterrascope.co
9
Greenly logo

Greenly

specialized

User-friendly carbon footprint calculator and management tool that simplifies emissions tracking and offsetting for SMEs.

Overall Rating8.5/10
Features
8.7/10
Ease of Use
9.0/10
Value
8.2/10
Standout Feature

AI-powered spend-based carbon accounting that automates Scope 3 calculations from financial data

Greenly is a carbon management platform that automates the calculation of Scope 1, 2, and 3 emissions primarily through spend-based data integration with accounting and ERP systems. It offers dashboards for tracking footprints, AI-driven reduction recommendations, and reporting tools compliant with standards like CSRD, CDP, and SBTi. Designed for SMEs and mid-market companies, it simplifies sustainability efforts without requiring extensive manual data entry.

Pros

  • Automated spend-based emissions calculation saves time and reduces errors
  • Strong Scope 3 coverage with granular supplier insights
  • Intuitive interface and quick integrations with tools like QuickBooks and Xero

Cons

  • Pricing can be steep for very small businesses
  • Limited advanced customization for complex enterprise reporting
  • Relies heavily on spend data accuracy, which may need initial adjustments

Best For

SMEs and mid-sized companies seeking an easy-to-use, automated solution for carbon accounting and reduction without a dedicated sustainability team.

Pricing

Custom pricing starting at around €999/month for SMB plans, scaling to enterprise tiers based on emissions volume and features.

Visit Greenlygreenly.earth
10
Plan A logo

Plan A

specialized

Sustainability platform offering carbon accounting, energy management, and compliance tools tailored for European businesses.

Overall Rating7.8/10
Features
8.2/10
Ease of Use
8.0/10
Value
7.4/10
Standout Feature

AI-powered spend-based emissions calculation for rapid Scope 3 insights

Plan A (plana.earth) is a comprehensive carbon management platform designed to help businesses measure, reduce, and report on their Scope 1, 2, and 3 emissions with automated data collection and AI-powered calculations. It offers real-time dashboards, science-based target setting, scenario modeling, and supplier engagement tools to support net-zero strategies. The software emphasizes ease of integration with ERP systems and compliance with standards like GHG Protocol and CSRD.

Pros

  • Strong Scope 3 emissions tracking with supplier portals
  • Intuitive dashboards and automated reporting for compliance
  • Robust integrations with ERP and data sources

Cons

  • Pricing is on the higher end for smaller businesses
  • Limited advanced customization options
  • Primarily tailored for European regulations

Best For

Mid-sized enterprises in Europe seeking an all-in-one solution for carbon accounting and supplier engagement.

Pricing

Starts at €990/month for basic plans (up to 50 employees), scales to custom enterprise pricing.

Visit Plan Aplana.earth

Conclusion

The top tools reviewed provide diverse solutions for carbon management, with Persefoni leading as the top choice, thanks to its comprehensive enterprise automation for tracking and reporting Scope 1, 2, and 3 emissions, designed to streamline compliance and reduction. Watershed follows with AI-driven insights and supplier engagement, while Salesforce Net Zero Cloud stands out for its integration within the Salesforce ecosystem, simplifying sustainability management for users. Each tool suits specific needs, but Persefoni excels in full-scope automation.

Persefoni logo
Our Top Pick
Persefoni

Don’t miss out on transforming your carbon management—try Persefoni, the solution that turns complex emissions tracking into a seamless, impactful process, and start building a more sustainable future today.